[PATCH] Fix signed zeros issues with recent SSE expansion patches

[Roger Sayle]

On Tue, 31 Oct 2006, Richard Guenther wrote:
> 2006-10-30  Richard Guenther  <rguenther@suse.de>
>
> 	* config/i386/i386.c (ix86_expand_rint): Fix issues with
> 	signed zeros.
> 	(ix86_expand_floorceildf_32): Likewise.
> 	(ix86_expand_floorceil): Likewise.
> 	(ix86_expand_trunc): Likewise.
>
> 	* testsuite/gcc.target/i386/fpprec-1.c: New testcase.

This is OK for mainline.  Thanks.

Roger
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